structure factor

简明释义

结构因子

英英释义

例句

1.In X-ray diffraction, the structure factor 结构因子 helps us understand how atoms are arranged in a solid.

在X射线衍射中，结构因子 结构因子 帮助我们理解固体中原子的排列方式。

2.The structure factor 结构因子 plays a crucial role in predicting the diffraction pattern of a crystal.

在预测晶体的衍射图案时，结构因子 结构因子 起着至关重要的作用。

3.To refine the model, we need to adjust the structure factor 结构因子 values based on experimental data.

为了优化模型，我们需要根据实验数据调整结构因子 结构因子 值。

4.The calculation of the structure factor 结构因子 is essential for determining the crystal's electron density.

计算结构因子 结构因子 对于确定晶体的电子密度至关重要。

5.The structure factor 结构因子 can be influenced by the presence of impurities in the material.

材料中杂质的存在会影响结构因子 结构因子。

作文

In the field of crystallography, understanding the concept of structure factor is crucial for interpreting the arrangement of atoms within a crystal lattice. The structure factor is a mathematical description that provides information about the amplitude and phase of scattered X-rays or neutrons when they interact with the crystal. It is defined as the sum of the scattering contributions from all the atoms in the unit cell of the crystal, taking into account their positions and the type of atoms involved. The structure factor can be represented by the equation: F(hkl) = Σf_j * e^(-2πi(hx_j + ky_j + lz_j)), where F(hkl) is the structure factor for the Miller indices (h, k, l), f_j is the atomic form factor of atom j, and (x_j, y_j, z_j) are the coordinates of atom j within the unit cell. This equation illustrates how each atom contributes to the overall scattering based on its position and type.When X-rays strike a crystal, they are scattered in various directions. The intensity of the scattered light at a particular angle depends on the structure factor. By analyzing the diffraction pattern produced by the scattered rays, scientists can deduce the structure factor values, which ultimately allows them to reconstruct the three-dimensional arrangement of atoms in the crystal.One of the most significant applications of the structure factor is in determining the crystal structure of complex materials. For example, in pharmaceutical research, understanding the crystal structure of drug compounds can lead to insights into their efficacy and stability. By utilizing X-ray crystallography, researchers can calculate the structure factor and thereby elucidate the molecular arrangement, which is essential for drug design and development.Moreover, the structure factor plays a vital role in the study of materials science. It helps scientists understand the properties of metals, ceramics, and polymers at the atomic level. By manipulating the structure factor, researchers can tailor the properties of materials to meet specific requirements, such as enhancing strength, improving conductivity, or increasing resistance to corrosion.In conclusion, the structure factor is a fundamental concept in crystallography that serves as a bridge between experimental data and theoretical models of atomic arrangements. By providing insight into how atoms are organized in a crystal, the structure factor enables advancements in various scientific fields, including chemistry, biology, and materials science. As technology continues to evolve, the ability to accurately determine and manipulate the structure factor will undoubtedly lead to new discoveries and innovations that enhance our understanding of the material world around us.

在晶体学领域，理解“结构因子”的概念对于解释晶体格子中原子的排列至关重要。“结构因子”是一个数学描述，它提供了关于散射的X射线或中子与晶体相互作用时幅度和相位的信息。它被定义为单位晶胞中所有原子的散射贡献之和，同时考虑到它们的位置和所涉及的原子类型。“结构因子”可以通过以下方程表示：F(hkl) = Σf_j * e^(-2πi(hx_j + ky_j + lz_j))，其中F(hkl)是米勒指数(h, k, l)的“结构因子”，f_j是原子j的原子形状因子，而(x_j, y_j, z_j)是单位晶胞中原子j的坐标。这个方程说明了每个原子如何根据其位置和类型对整体散射做出贡献。当X射线照射到晶体上时，它们会向各个方向散射。在特定角度下，散射光的强度取决于“结构因子”。通过分析散射光产生的衍射图样，科学家可以推导出“结构因子”值，从而最终重建晶体中原子的三维排列。“结构因子”最重要的应用之一是在确定复杂材料的晶体结构方面。例如，在药物研究中，了解药物化合物的晶体结构可以为其有效性和稳定性提供见解。通过利用X射线晶体学，研究人员可以计算“结构因子”，从而阐明分子排列，这对药物设计和开发至关重要。此外，“结构因子”在材料科学研究中也发挥着重要作用。它帮助科学家从原子层面理解金属、陶瓷和聚合物的性质。通过操纵“结构因子”，研究人员可以调整材料的性质以满足特定要求，例如增强强度、改善导电性或提高耐腐蚀性。总之，“结构因子”是晶体学中的一个基本概念，它作为实验数据与原子排列理论模型之间的桥梁。通过提供关于原子在晶体中如何组织的见解，“结构因子”使得化学、生物学和材料科学等多个科学领域的进步成为可能。随着技术的不断发展，准确确定和操纵“结构因子”的能力无疑将导致新的发现和创新，从而增强我们对周围物质世界的理解。